A Motion Detection Method on Video Image by Using Hierarchical Pixels
Hideyoshi Tominaga, Naohisa Komatsu, Miyashita Takeshi, Associate Member Tsuyoshi Hanamura · Systems and Computers in Japan · 1990
Abstract It is not easy to extract significant information from image data concerning the motion and the structure of an object, but this technique is indispensable to the future development of video coding and recognition of a moving object. The block matching method [1] is employed widely as a motion detection method in the motion‐compensated interframe coding. However, it has a problem in that the motion is estimated by the prediction error power minimization condition, which may lead to an instability in accurate motion detection. This paper proposes a new block matching method that has the following features: the motion is estimated and detected by stepwise switching from larger block size to smaller block size; by this scheme, the motion detection accuracy and the spatial resolution can be improved, and the processing complexity can also be reduced without degrading the detection accuracy.